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. 2021 Jun 4;16(6):e0252427. doi: 10.1371/journal.pone.0252427

Table 3. Primary smoking behavioural reaction to COVID-19, overall and by country (weighted).

Canada United States England Australia Overall
Tried to quit smoking (n = 226) 1.7% 1.1% 1.4% 0.1% 1.1%
p-value < .0001 < .001 < .0001 Reference
Reduced smoking (n = 1142) 14.1% 15.5% 15.0% 9.6% 14.2%
p-value 0.01 0.01 0.01 Reference
Increased smoking (n = 1069) 17.0% 10.7% 15.4% 13.1% 14.6%
p-value 0.03 0.60 0.15 Reference
Don’t Know (n = 162) 1.9% 2.7% 2.8% 1.0% 2.2%
p-value 0.10 0.03 0.02 Reference
No effect on smoking* (n = 4234) 65.2% 65.4% 69.9% 76.2% 67.9%
Tried to quit/reduced smoking (n = 1368) 16.0% 16.7% 16.5% 9.3% 15.5%
p-value (vs. other response) 0.004 0.003 0.003 Reference 0.022

N = 6833. Regression analysis outcomes

*Reference for outcome comparisons. Combined categories: tried to quit/reduced smoking vs. other response: increased smoking/no effect/don’t know. Covariates included: country, age, sex, income, education, ethnicity.

Country omnibus test: p<0.02.